ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/gvpe/NEWS
(Generate patch)

Comparing gvpe/NEWS (file contents):
Revision 1.99 by root, Sun Mar 6 19:40:27 2011 UTC vs.
Revision 1.125 by root, Thu Jan 29 00:24:21 2015 UTC

1GVPE NEWS 1GVPE NEWS
2 2
3TODO: bridge mode, finally?
4TODO: gcm mode?
5TODO: replace ripemd160 as the only authentication hash.
6TODO: increase rsa size.
7TODO: replace transport bits by transport endpoint structs?
8TODO: http://incog-izick.blogspot.de/2011/08/using-openssl-aes-gcm.html
9TODO: http://stackoverflow.com/questions/12153009/openssl-c-example-of-aes-gcm-using-evp-interfaces
10
11TODO: verify
12TODO: make sense of overhead calculation
13TODO: if-up &c should not be scripts?
14TODO: ipv6
15TODO: gvpectrl should not use default privatekey,. or maybe document it better
16 - INCOMPATIBLE CHANGE: core protocol version 1.0.
17 - INCOMPATIBLE CHANGE: node sections are now introduced
18 with "node nodename", not "node = nodename".
19 - while individual packets couldn't be replayed, a whole session
20 could be replayed - this has been fixed by an extra key exchange.
21 - in addition to rsa key exchange and authentication, the handshake now
22 adds a diffie-hellman key exchange (using curve25119) for perfect
23 forward secrecy. mac and cipher keys are derived using HKDF.
24 - rsa key sizes are now configurable and larger (default is 3072).
25 correspondingly, the minimum mtu is no longer 296 but 576.
26 - fixed a potential (unverified) buffer overrun on rsa decryption.
27 - new per-node low-power setting that tries to reduce cpu/network usage.
28 - router reconnects could cause excessive rekeying on other connections.
29 - gvpectrl no longer generates all missing public keys, but
30 only missing private keys. private keys are also put
31 into the configured location.
32 - the pid-file now accepts %s as nodename as elsewhere.
33 - switch to counter mode (only aes supported at the moment in
34 openssl). this gets rid of the need to generate a random iv,
35 is likely more secure (and, as a side effect, gets rid of
36 slow randomness generation. counter mode is often faster
37 then cbc mode as well, and packets are smaller).
38 - no longer use RAND_bytes to generate session keys - you NEED
39 a real source of entropy now (e.g. egd or /dev/random - see the
40 openssl documentation).
41 - multiple node statements for the same node are now supported
42 and will be merged.
43 - a new directive "global" switches back to the global section
44 of the config file.
45 - if-up scripts can now be specified with absolute paths.
46 - new global option: serial, to detect configuration mismatches.
47 - use HKDF as authentication proof, not HMAC or a plain hash
48 (hint by Ilmari Karonen).
49 - during rekeying or conenction establishments, hmac authentication
50 errors could occur and reset the connection. Transient hmac
51 authentication errors are now being ignored for 3 seconds.
52 - log the reason for a conneciton loss.
53 - use a (hopefully) constant time memcmp to compare internal secrets.
54
552.25 Sat Jul 13 06:42:33 CEST 2013
3 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other 56 - INCOMPATIBLE CHANGE: no longer enable udp protocol if no other
4 protocols are enabled - this is necessary when you have nodes with 57 protocols are enabled - this is necessary when you have nodes with
5 completely unknown protocols, to force mediated connection requests. 58 completely unknown protocols, to force mediated connection requests.
6 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2. 59 - INCOMPATIBLE CHANGE: dns transport protocol bumped to version 2.
7 - core protocol version 0.1, compatible with older releases. 60 - core protocol version 0.1, compatible with older releases.
61 - switch to using RSA_generate_key_ex, which is the badly documented
62 and needlessly more complicated replacement for the RSA_generate_key
63 function which is now deprecated.
64 - support additional hmac hashes: sha256 and sha512, usually truncated.
65 - change public exponent for rsa keys from 65535 to 65537, for
66 efficiency reasons - only affects new keys.
67 - nodes would sometimes declare transport endpoints valid despite
68 the protocol not being configured locally.
69 - new global configuration options: chroot, chuser, chuid, chgid,
70 to chroot to a specified or anonymous new root, and change user id.
71 - new global configuration options seed_device and seed_interval,
72 to configure another device than /dev/urandom for random seeds,
73 and to configure a regular interval to reseed the rng.
74 - prefer inet_aton over gethostbyname, as the latter is not guaranteed
75 to "resolve" literal ip addresses.
76 - configure didn't detect openssl 1.0 because SHA1_version became private
77 (patch by TANIGUCHI Takaki).
8 - fix a bug where nodes would tell the other side that it supports 78 - fix a bug where nodes would tell the other side that it supports
9 the same protocols as that other side, instead of its own. 79 the same protocols as that other side, instead of its own.
10 - add zlib when found, as openssl depends on it in newer versions. 80 - add zlib when found, as openssl depends on it in newer versions.
11 - work around append-bugs in uclibc by using an extra seek. 81 - work around append-bugs in uclibc by using an extra seek.
12 - new "include" directive for the config file. 82 - new "include" directive for the config file.
83 - gvpectrl no longer evaluates any "on" directives.
84 - icmp and rawip protocols weren't upgradable to each other.
13 - major, but incremental, dns transport improvements: 85 - major, but incremental, dns transport improvements:
14 - do not simply abort in some error cases in the dns transport, 86 - do not simply abort in some error cases in the dns transport,
15 but try to recover. 87 but try to recover.
16 - allow lowercase/uppercase alises for base-n encodings that do 88 - allow lowercase/uppercase aliases for base-n encodings that do
17 not rely on case. 89 not rely on case.
18 - use base26 instead of base22 encoding for dns syn's, and 90 - use base26 instead of base22 encoding for dns syn's, and
19 base36 instead of base22 for headers (saves one byte/packet). 91 base36 instead of base22 for headers (saves one byte/packet).
20 - back off far quicker in dns tunnel when idling - increases 92 - back off far quicker in dns tunnel when idling - increases
21 latency on an idle link somewhat, but avoids hundreds of 93 latency on an idle link somewhat, but avoids hundreds of
22 needless packets. 94 needless packets.
23 - poll more aggressively when idling in dns (poll once per 95 - poll more aggressively when idling in dns (poll once per
24 second as opposed to once per 5 seconds). 96 second as opposed to once per 5 seconds).
97 - reduce dns send payload size to allow greater rate of ack
98 messages (should help sack and ipv6).
99 - allow for ip options in rawip/icmp transports, even though gvpe
100 doesn't generate them.
101 - upgrade to autoconf 2.69, automake 1.11.
102 - upgrade to libev 4 API.
103 - replace COPYING file by actual GPLv3 - files were relicensed to GPLv3
104 earlier but COPYING was forgotten.
25 105
262.24 Sat Feb 12 05:15:48 CET 2011 1062.24 Sat Feb 12 05:15:48 CET 2011
27 - protocol version 0.1, compatible with older releases. 107 - protocol version 0.1, compatible with older releases.
28 - due to a bug, when packets were lost, a connection could go into a 108 - due to a bug, when packets were lost, a connection could go into a
29 state where a ping/connection request from another node would be 109 state where a ping/connection request from another node would be

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines